US3340305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing aryl alkyl aminoketones
Assignee: Aenova IP GmbH
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Filing: 1964-07-07
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Granted: 1967-09-05
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Jahn Uirich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:38
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/63; B; B01; B01J; B01J19/00; B01J19/18; B01J19/1868; B01J19/1875; C07C49/00; C07C49/76; C07C49/80; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
THE METHOD WHICH COMPRISES CONTINUOUSLY INTRODUCING INTO THE UPPER PORTION OF A CLOSED REACTION VESSEL A LIQUID COMPOUND SELECTED FROM THE GROUP CONSISTING OF PROPIOPHENONE, N-BUTYROPHENONE, ISOBUTYROPHENONE, NVALEROPHENONE AND ISOVALEROPHENONE, AND ALSO CONTINUOUSLY INTRODUCING INTO THE UPPER PORTION OF SAID REACTION VESSEL AT A LEVEL BELOW THE LEVEL OF INTRODUCTION OF SAID LIQUID COMPOUND A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, SO AS TO FORM IN THE UPPER PORTION OF SAID REACTION VESSEL IN A REACTION ZNE SUBSTANTIALLY LOCATED BETWEEN THE LEVELS OF INTRODUCTION OF SAID COMPOUND AND SAID HALOGEN A REACTION MIXTURE, THE LATTER BEING FREE OF ANY SOLVENT, AND CONTINUOUSLY AGITATING SAID REACTION MIXTURE AND CIRCULATING THE SAME BETWEEN THE UPPER AND LOWER PORTION OF THE REACTION VESSEL SO AS TO CONTINUOUSLY FORM IN SAID REACTION VESSEL THE CORRESPONDING HYDROGEN HALIDE AND THE CORRESPONDING ALPHA CHLORO OR ALPHA BROMO HALOGENATED COMPOUND, WHEREBY SAID HALOGENATED COMPOUND IS FORMED IN THE ABSENCE OF A SOLVENT AND WITHOUT ANY CONTAMINATING RESINOUS SIDE PRODUCTS; CONTINUOUSLY REMOVING HYDROGEN HALIDE FROM THE REACTION VESSEL; AND CONTINUOUSLY WITHDRAWING HALOGENATED COMPOUND FROM THE LOWER PORTION OF SAID REACTION VESSEL.
Claim 2
Independent Claim
187 words
THE METHOD WHICH COMPRISES CONTINUOUSLY INTRODUCING INTO THE UPPER PORTION OF A CLOSED REACTION VESSEL A LIQUID COMPOUND SELECTED FROM THE GROUP CONSISTING OF PROPIOPHENONE, N-BUTYROPHENONE, ISOBUTYROPHENONE, NVALEROPHENONE AND ISOVALEROPHENONE, AND ALSO CONTINUOUSLY INTRODUCING INTO THE UPPER PORTION OF SAID REACTION VESSEL AT A LEVEL BELOW THE LEVEL OF INTRODUCTION OF SAID LIQUID COMPOUND A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, SO AS TO FORM IN THE UPPER PORTION OF SAID REACTION VESSEL IN A REACTION ZNE SUBSTANTIALLY LOCATED BETWEEN THE LEVELS OF INTRODUCTION OF SAID COMPOUND AND SAID HALOGEN A REACTION MIXTURE, THE LATTER BEING FREE OF ANY SOLVENT, AND CONTINUOUSLY AGITATING SAID REACTION MIXTURE AND CIRCULATING THE SAME BETWEEN THE UPPER AND LOWER PORTION OF THE REACTION VESSEL SO AS TO CONTINUOUSLY FORM IN SAID REACTION VESSEL THE CORRESPONDING HYDROGEN HALIDE AND THE CORRESPONDING ALPHA CHLORO OR ALPHA BROMO HALOGENATED COMPOUND, WHEREBY SAID HALOGENATED COMPOUND IS FORMED IN THE ABSENCE OF A SOLVENT AND WITHOUT ANY CONTAMINATING RESINOUS SIDE PRODUCTS; CONTINUOUSLY REMOVING HYDROGEN HALIDE FROM THE REACTION VESSEL; AND CONTINUOUSLY WITHDRAWING HALOGENATED COMPOUND FROM THE LOWER PORTION OF SAID REACTION VESSEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |